A health analysis fixture includes a receptacle. A volume of water and a body fluid sample form a water line within the receptacle. A light-emitting device and a light-sensing device are disposed within the receptacle. A measurement device determines a height of the water line before and after an introduction of the body fluid sample. A computer processor is configured to receive sensor data from the light-sensing device, receive the determined height of the water line before and after the introduction of the body fluid sample from the measurement device, calculate a dilution factor for the body fluid sample from the received height of the water line before and after the introduction of the body fluid sample, receive sensor data from the light-sensing device, and interpret the received sensor data based on the dilution factor to generate health information therefrom.
